What is the value of pk, for the fluoride anion, F at 25°C? Ka(HF) = 7.1 x 10-4? Express your answer in decimal notation rounded to three significant figures.
Q: The accepted value of K is 1.2 x 10 -12 for AgCro, Calculate the percentage error if your…
A: Accepted value of Ksp = 1.2 × 10-12 Experimental value of Ksp = 1.4 × 10-10 We need to find…
Q: What is the pH of a 0.270 M solution of aniline (C6H;NH2, Kb = 4.3 x 10-19)?
A: Given: concentration of aniline, C = 0.270M Kb = 4.3 x 10-10
Q: 3. Calculate AG for the dissolution of Ca(OH)2 at room temperature and 100 °C.
A: Given - Volume of Ca(OH)2 at 25°C = 5.0 mL Volume of Ca(OH)2 at 100°C = 5.0 mL…
Q: What is the pH of a 0.260 M solution of aniline (C6HSNH2, Kb = 4.3 x 10-10)?
A: Given, MOlarity of aniline = 0.260M
Q: Calculate the weight of solid Ba(OH)2 (MW = 171.34g) in order to make a 0.39 litre of the base…
A: Here we are required to mass of Ba(OH)2.
Q: Determine what is wrong with the Ksp expression for Ba(OH)2 and correct it. [Ba(OH)2] Ksp [Ba*][OH…
A: as per Q&A guidelines of portal I solve first question because it comes under multiple question…
Q: In 100-200 words, Differentiate acidimetry from alkalimetry.
A: We have to differentiate acidimetry from alkalimetry as follows in step 2:
Q: What is the pH of a 0.290 M solution of aniline (C6H5NH2, Kb = 4.3 x 10-10)?
A: In the given question we have to calculate the pH of Aniline. concentration of Aniline = 0.290 M Kb…
Q: The dissociation expression of a dilute aqueous solution of acetic acid is shown as: CH3COOH(aq) +…
A: Acetic acid, a weak acid does not dissociate completely in aqueous solution but slight ionization…
Q: If you use 1.00 mole of a monoprotic weak acid (pKa = 5.00) and 0.90 mole of its conjugate base,…
A:
Q: Calculate AG for the dilution of aqueous HCl from 2.17 M to 0.276 M at 25°C.
A: Given that HCl has to be diluted from a concentration of 2.17 M to 0.276 M at 25°C. Therefore, the…
Q: What are the advantages and disadvantages of the Winkler method for measuring D.O.?
A: Winkler method is an easy to use method which involves titration in procedure.
Q: Describe in detail the steps involved to prepare following solution; a) 0.2% (v/v) , (v/w), (w/v)…
A: a) 0.2 % v/v For 0.2 % V/V solution, we will pipette out o.2 ml of acetic acid and dilute it in 100…
Q: The NaOH KHP titer is 40.84mg/mL.What is the total acidity if 18.00mL of NaOH is required to…
A: Vinegar is solution that contains certain percentage of acetic acid diluted with water to obtain…
Q: 5. Magnesium hydroxide (Mg(OH)2) has a pKsp value of 11.25. In a solution at pH 10, what is the…
A: Given, pKsp of Mg(OH)2 = 11.25 pH = 10 What is the maximum Mg2+ concentration in µmol/L = ? What…
Q: Which of the following substances is likely to have the largest pK,? Select an answer and submit.…
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Q: How to calculate H2 consumption amount from TPR?
A: The specific reaction is AgO + H2 → Ag + H2O. Thirty-six analyses of this particular batch of…
Q: Calculate the Delta G value from the following data and
A:
Q: which of the following is secondary standard ? A) hydrochloric acid B) sodium oxalate , C)…
A: Given compounds, A) hydrochloric acid B) sodium oxalate C) potassium hydrogen phthalate D) sodium…
Q: By what factor does [H+] change for a pH change of (a) 2.00units, (b) 0.50 units?
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Q: Determine the distribution ratio (D) when K is 4.00 with a Ka of 2.10 x 10^-4 . The pH of the acid…
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Q: What is the pH and fraction of association of a 0.100 M solution of a weak base with Kb = 1.00 X…
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Q: Standard solution used in nonaqueous alkalimetry: a. hydrogen bromide b. sodium hydroxide c.…
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Q: There are many organic acids and bases in our cells, and their presence modifies the pH of the…
A: Henderson Hasselbalch equation: Ka is the acid dissociation constant. Given data: Acid is lactic…
Q: Find the enthalpy of neutralization of 75.5mL 1.00M aqueous sodium hydroxide with 40.7mL 1.00M…
A: Given that,Volume of NaOH = 75.5 mLMolarity of NaOH = 1.00 MVolume of HCl = 40.7 mLMolarity of HCl =…
Q: Without doing any calculations, rank the systems in order of increasing Kc. Designate 1 as the…
A: Using the equilibrium concentration of reactants and products, concentration equilibrium constant,…
Q: не V ðT\ dP Which of the following is equivalent to P a kT TIT
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Q: .CI 1) AICI, 2) H,0 1) PPh, 2) BuLi Br 3) OH excess PCC HO.
A:
Q: Give some examples of secondary standard solutions, and give the reason
A: There are mainly two types of solution, primary standard solutions and secondary standard solutions.…
Q: Enumerate and differentiate briefly the different forms of calcium in the blood. EXPLAIN 3-5…
A: Answer - According to the question - In blood calcium exists in 3 different forms : (1) 50% as…
Q: How many miliequivalents of potassium chloride are represented in 20 ml dose of 6% (w/v) potassium…
A: Given : Volume of solution = 20 mL And % (w/v) of potassium chloride i.e KCl solution = 6 %.
Q: Calculate the pH of a 2.00 M Na2CO3 given that the pKa’s of the first and second dissociation of…
A: The pH for the solution of 2.00 M Na2CO3 is to be calculated. Given: pKa1 = 6.37 pKa2 = 10.32.…
Q: Estimate the equilibrium constant for the system indicated at 25oC. 3 Mg2+ + 2 Al --> 3 Mg + 2…
A: Standard electrode potential is the tendency of an electrode to loss or gain electron at 25oC.…
Q: What is the pH of a 0,0100 mol.dm–3 solution of a weak, monoprotic acid with Ka = 3,4 x10^-3 at…
A: We have to calculate the pH of solution.
Q: 2. Consider the following ions: sulfate (SO, 2), acetate (C,H,O, '),hydrogen carbonate(HCO, '),…
A: Amphoteric ions which can act as acid and base both .
Q: What is the ratio strength (w/v) of a solution made by dissolving 16 tablets, each containing 1.5 g…
A: Solution - According to the question - Given - w = 1.5 g v = 1250 ml (1.25 L) Formulas = = w/v…
Q: If 25,0 cm3 of the NH3 (concentration 0,10 mol∙dm–3) is titrated with the HCl (concentration 0,050…
A: Given data, Molarity of NH3=0.10mol/dm3=0.10mol/LVolume of NH3=25.0cm3=0.025LMolarity of…
Q: Consider a weak acid, HA, for which Ka = 7.1x10-4. Calculate [H*] in a solution that is 0.45 M in…
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Q: Derive a general expression that shows pH dependence of the distributioncoefficient defined in…
A: SOLUTION: Step 1: The distribution ratio and partition coefficient are identical for a simple…
Q: The pK of an acid is a measure of its proton-group-transfer potential. (a) Derive a relation between…
A: Consider an acid HA. The dissociation of HA is expressed as, HA⇌H++A- The expression of the…
Q: (a) MeMgBr (excess) H,O* workup (b) CN NaOH 0 °C (e) Ph.
A:
Q: Part B Using the method of successive approximations, what is [H3O*] in 0.500 M HC1O2 (K, = 1.1 x…
A: HNO2 ⇔H+ + NO2- Ka = [H+] [NO2-][HNO2] = x2(0.00250-x) 4.5 * 10-4 (0.00250 - x) = x2 1.125 * 10-6 -…
Q: For the following, identify the most likely value for x: BH,
A: Introduction: We have to tell the value of x.
Q: For a solution in which ionic strength, u = 5.0 x T
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Q: Show how the composition of an aqueous solution that contains 30 mmol dm-3 tyrosine varies with pH.
A: Tyrosine is also known as 4-hydroxyphenylalanine is a non-essential amino acid. At neutral pH,…
Q: The pH of a .10M weak base solution is 10.7 at 25C. What is the deltaG rxn in kJ at 25C?
A: Assuming the weak base is monoprotic base BOH. Given : Concentration of weak base taken = 0.10 M…
Q: Estimate the pH of an aqueous solution of benzoic acid, C6H5COOH, of concentration 0.0957 mol dm–3.…
A: pH is equal to the negative logarithm of hydronium ion concentration. pH=-log(H3O+) Ka is known as…
Q: The equivalent conductance of a 0.0140N solution of chloroacetic acid is 109.0 at 250C. What is the…
A: The ionization constant (Ka) of chloroacetic acid has to be given,
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- Calculate the solubility of Ba(IO3)2 in water (Ks = 1.57×10-9).What is the accepted value for the Ksp of Ca(OH)2, including the conditions for its determination?For biological and medical applications it is often necessary to consider proton transfer equilibria at body temperature (37 °C). The value of Kw for water at body temperature is 2.5 x 10-14 (a) What are the va lue of [H3O+) and the pH of neutral water at 37 °C. (b) What is the molar concentration ofOH- ions and the pOH of neutral water at 37 °C?
- What would be the KPs value of Al(OH)3, considering that its solubility is 2,5 x 10^-8 mol/L?Aqueous 50.5 % (w/w) sodium hydroxide has a density of 1.53 g cm–3. Calculate the concentration of this solution in mol dm–3.Derive a general expression that shows pH dependence of the distributioncoefficient defined in (2-20) for a weak acid between a fermentation broth and an organic solvent.
- Procaine hydrochloride (MW = 273; L iso value = 3.37). Calculate its NaCl EquivalentBenzoic acid (C6H5CO2H) is a weak acid with a dissociation constant. Ka = 6.4 x 10-5 mol/dm3 at 250C. What happens when: Hydrogen chloride gas is bubbled through an aqueous solution of benzoic acid? An aqueous solution of sodium benzoate mixed with an aqueous solution of benzoic acid.the kf for Zn(NH3)4^2+ is 2.8x10^9